Graft copolymers of polymerizable monomers and olefin/carbon monoxide copolymers

Abstract

Graft copolymers of polymerizable monomers and olefin/carbon monoxide copolymers are uniquely suitable as compatibilizing agents in the preparation of polyester or polycarbonate containing resin blends.

What is claimed is: 
     
       1. A composition comprising a grafted olefin/carbon monoxide copolymer comprising a substrate phase of a copolymer of a C 2-8  olefin and carbon monoxide containing from 0.1 to 40 percent by weight carbon monoxide having grafted thereto a graft polymer phase comprising one or more vinyl or vinylidene monomers, the weight ratio of substrate to graft polymer phase being from 0.1/100 to 100/0.1. 
     
     
       2. A composition according to claim 1 wherein the olefin/carbon monoxide copolymer substrate is an ethylene/carbon monoxide copolymer. 
     
     
       3. A composition according to claim 2 wherein the carbon monoxide content of the olefin/carbon monoxide copolymer substrate is from 0.5 to 10 weight percent. 
     
     
       4. A composition according to claim 1 wherein the graft to substrate ratio is from 1:100 to 100:1. 
     
     
       5. A composition according to claim 1 wherein the graft polymer comprises a polymer of methyl methacrylate, styrene, acrylonitrile, or mixtures thereof. 
     
     
       6. A composition according to claim 1 prepared by contacting the substrate copolymer with the monomers and initiating free radical polymerization of the mixture.